Answer:
$360
Explanation:
The number of cases needed is ...
180 packages / (12 packages/case) = 15 cases
Then the extended cost is 15 cases @ $24 each*:
15 × $24 = $360
The total cost of 180 packages of paper would be $360.
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* $48 for 2 cases means each case costs $48/2 = $24.